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Statistics and Probability
The life expectancy of a particular car battery is 24 months with a standard deviation of 2 months. What is the z- score if a particular car battery lasted for only 20 months?
Statistics and Probability
Lesson Activity: A. A population consists of the numbers 2, 4, 8, 10 and 5. Let us list all the possible samples of size 3 from this population and construct the sampling distribution of the sample mean. B. Complete the statement by filling in the blank. Write your answer on a separate sheet of paper. A ___________ is a frequency distribution using the means computed from all possible random samples of a specific size taken from a population. To get the possible samples use the formula ______, where N is the ________ and n is the ____ size to be taken. The total probability of the sample mean must be equal to ____.
Statistics and Probability
A ___________ is a frequency distribution using the means computed from all possible random samples of a specific size taken from a population. To get the possible samples use the formula ______, where N is the ________ and n is the ____ size to be taken. The total probability of the sample mean must be equal to ____.
Statistics and Probability
if (x1,y1),(x2,y2),....,(xn,yn),be a random sample taken from a logistic regression,
Statistics and Probability
It has been found that on average, four motorbikes go through an N1 tollgate every 20 minutes. What is the probability that
No more than 2 motorbikes will go through the tollgate in any randomly selected 20-minute period? Interpret your answer.
Statistics and Probability
Charlie tests the light bulbs manufactured in a factory. He found that 3 bulbs out of every 200 bulbs he tested were damaged. If he tested 4,000 bulbs, how many damaged bulbs would he be expected to find?
Statistics and Probability
About what percent of products last 15 more days
Statistics and Probability
The average words per minute a person can type is 50 words per minute with standard deviation of 2.5 words. If you choose 25 samples, what is the probability that the average words they can type is more than 39?
Statistics and Probability
1. Tasks/Questions: Observe the surroundings and try to create word problems involving Mean and Variance of Discrete Random Variable. For each problem you need to give illustration by using tables, diagrams or step by step procedure on how to answer the problem. See to it that the solution you provided is easy to understand. You can submit your work thru fb messenger or email. II. Expected Output: Formulate sample worksheet to represent problems involving Mean and Variance of Discrete Random Variable with solutions.
Statistics and Probability
- Records of a health insurance company show that 30% of its policyholders over 50 submit a claim during the year. 15 policyholders over 50 are selected at random; what is the probability that at least 10 will submit a claim during the year? What is the probability that 4 will submit a claim during the year? How many do you expect to submit a claim? What is the standard deviation?
